Showtime Sports has scheduled more than 100 hours of diverse boxing and documentary programming across broadcast television, cable television, premium television, and digital portals in advance of the upcoming Showtime PPV presentation of “May Day” – headlined by Floyd “Money” Mayweather’s welterweight world championship defense against four-division world champion Robert “The Ghost” Guerrero, Saturday, May 4 at the MGM Grand Garden Arena in Las Vegas.

The lineup features more than 20 hours of live, edited and exclusive content targeted for a general sports audience as well as the core boxing fans and includes two documentary films, a five-part documentary series, a 30-minute countdown show, two live Showtime Championship Boxing events and live coverage from multiple fight week events, all before the first bell of May Day: Mayweather vs. Guerrero pay-per-view special.

Showtime Sports has also tapped former HBO boxing chief Ross Greenburg to serve as executive producer on two key pieces of programming involving editorial on Mayweather, having executive produced multiple documentary series on the fighter since 2007 at HBO. Greenburg will work on a CBS television documentary special as well as the Showtime Sports series “All Access: Mayweather vs. Guerrero.”

Greenburg, formerly the head of HBO Sports, resigned under pressure after HBO lost a major Manny Pacquiao pay-per-view event to Showtime. HBO then poached Ken Hershman, the longtime head of Showtime Sports, to replace Greenburg.